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Product Description

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Features

Introducing the SEP Series by ADP. These large commercial unit heaters are the perfect solution for heating warehouse and garage spaces. ADP's dedication for perfect quality products, extremely advanced designs, unique processes, propriety testing technologies and a trouble-free customer experience are integrated into the manufacturing process. The HED series gas-fired duct furnaces deliver 80% thermal efficiency using natural gas only. This excellent efficiency sets a new standard when using gas-fired duct furnaces. The design of this duct furnace has proven itself to be superior during seven years and hundreds of thousands of hours in the toughest winter climates of North America and under extreme conditions in laboratory life cycle testing. The HED has been designed to provide a long, trouble free service life. Every heater undergoes continuous quality checks at all stages of manufacturing. After assembly, each heater is test fired and functionally tested to provide final assurance that it is performing in accordance with ADP's rigorous quality. All heaters have a sealed flue collector and a power exhaust system which enable conventional vertical venting or horizontal venting up to 40 feet. Power exhaust, when used with horizontal venting, lowers operating cost because it reduces stack losses. It also allows the option of not penetrating the roof, or multiple floors. The versatile HED series power exhaust reduces installation cost further by allowing the exhaust to be directed upward, left or right, just by rotating the exhaust assembly (available on sizes 75-150 only). An additional benefit is reduction of clearance to combustibles on top of the unit. Constructed on 18- to 22-gauge cold-rolled steel, each cabinet has a baked-on powder paint finish for superior resistance to corrosive elements. Each cabinet has a two-point (3/8" x 16" spotnut) suspension system for easy installation. The three largest models have four-point suspensions. Generous use of inside cabinet insulation keeps the outer surface temperature low. The wiring junction box is conveniently located on the side of the cabinet for easy access and adequate protection.

Tubular Heat Exchangers

Constructed of aluminized steel for superior resistance to corrosion and oxidation. Additional protection is available with an optional stainless steel heat exchanger.

The curving design provides for complete exposure of the heating surface to the supply air stream. Rounded surfaces minimize air resistance and permit air to surround all heat transfer surfaces for excellent heat transfer.

The compact design of the heat exchanger minimizes cubic space requirements for the heater cabinet. Tubular design means lighter weight and significantly longer service life due to lower thermal-induced stresses.

Further, the tubular exchangers create less resistance to air flowing through the unit. This results in lower air handler horsepower requirements, reducing system operating costs in every season.

Inshot burners

These lightweight steel burners are maintenance-free and never require adjustment. The burner venture mixes air and gas in the correct proportion for efficient combustion. The entire burner assembly is removable for ease of service.

Direct spark ignition

In combination with the 24-volt main gas valve with 100% shutoff for safety, the direct spark ignition control provides reliable and safe main burner ignition. This eliminates the need for a pilot light, improving system efficiency and reliability.

Product Includes

A completely assembled heater

Installation and operation instructions

Warranty certificate

Flue transition

Specifications

General Information

Heat Exchanger Material

Aluminized Steel

Fuel Type To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Natural Gas

Vent Type Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Power Vent

Orientation Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.

Horizontal

Gas Conversion Kit

Not Available

Performance

Heating Capacity

160000 BTU

Maximum Input Capacity The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

200000 BTU

Efficiency

80 %

Maximum Air Flow

4230 CFM

Electrical Data

Voltage

115 Volts

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Piping Diameter

3/4 Inch

Product Height

32 3/16 Inches

Product Width

41 1/8 Inches

Product Depth

40 Inches

Product Weight

230 Pounds

Shipping Weight

270 Pounds

Warranty Information

Heat Exchanger Warranty

1 Year

Features

Features

Introducing the SEP Series by ADP. These large commercial unit heaters are the perfect solution for heating warehouse and garage spaces. ADP's dedication for perfect quality products, extremely advanced designs, unique processes, propriety testing technologies and a trouble-free customer experience are integrated into the manufacturing process. The HED series gas-fired duct furnaces deliver 80% thermal efficiency using natural gas only. This excellent efficiency sets a new standard when using gas-fired duct furnaces. The design of this duct furnace has proven itself to be superior during seven years and hundreds of thousands of hours in the toughest winter climates of North America and under extreme conditions in laboratory life cycle testing. The HED has been designed to provide a long, trouble free service life. Every heater undergoes continuous quality checks at all stages of manufacturing. After assembly, each heater is test fired and functionally tested to provide final assurance that it is performing in accordance with ADP's rigorous quality. All heaters have a sealed flue collector and a power exhaust system which enable conventional vertical venting or horizontal venting up to 40 feet. Power exhaust, when used with horizontal venting, lowers operating cost because it reduces stack losses. It also allows the option of not penetrating the roof, or multiple floors. The versatile HED series power exhaust reduces installation cost further by allowing the exhaust to be directed upward, left or right, just by rotating the exhaust assembly (available on sizes 75-150 only). An additional benefit is reduction of clearance to combustibles on top of the unit. Constructed on 18- to 22-gauge cold-rolled steel, each cabinet has a baked-on powder paint finish for superior resistance to corrosive elements. Each cabinet has a two-point (3/8" x 16" spotnut) suspension system for easy installation. The three largest models have four-point suspensions. Generous use of inside cabinet insulation keeps the outer surface temperature low. The wiring junction box is conveniently located on the side of the cabinet for easy access and adequate protection.

Tubular Heat Exchangers

Constructed of aluminized steel for superior resistance to corrosion and oxidation. Additional protection is available with an optional stainless steel heat exchanger.

The curving design provides for complete exposure of the heating surface to the supply air stream. Rounded surfaces minimize air resistance and permit air to surround all heat transfer surfaces for excellent heat transfer.

The compact design of the heat exchanger minimizes cubic space requirements for the heater cabinet. Tubular design means lighter weight and significantly longer service life due to lower thermal-induced stresses.

Further, the tubular exchangers create less resistance to air flowing through the unit. This results in lower air handler horsepower requirements, reducing system operating costs in every season.

Inshot burners

These lightweight steel burners are maintenance-free and never require adjustment. The burner venture mixes air and gas in the correct proportion for efficient combustion. The entire burner assembly is removable for ease of service.

Direct spark ignition

In combination with the 24-volt main gas valve with 100% shutoff for safety, the direct spark ignition control provides reliable and safe main burner ignition. This eliminates the need for a pilot light, improving system efficiency and reliability.

Product Includes

A completely assembled heater

Installation and operation instructions

Warranty certificate

Flue transition

Specifications

General Information

Heat Exchanger Material

Aluminized Steel

Fuel Type To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Natural Gas

Vent Type Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Power Vent

Orientation Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.

Horizontal

Gas Conversion Kit

Not Available

Performance

Heating Capacity

160000 BTU

Maximum Input Capacity The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

200000 BTU

Efficiency

80 %

Maximum Air Flow

4230 CFM

Electrical Data

Voltage

115 Volts

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Piping Diameter

3/4 Inch

Product Height

32 3/16 Inches

Product Width

41 1/8 Inches

Product Depth

40 Inches

Product Weight

230 Pounds

Shipping Weight

270 Pounds

Warranty Information

Heat Exchanger Warranty

1 Year

Product Specs

+−

Specifications

General Information

Heat Exchanger Material

Aluminized Steel

Fuel Type To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Natural Gas

Vent Type Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Power Vent

Orientation Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.

Horizontal

Gas Conversion Kit

Not Available

Performance

Heating Capacity

160000 BTU

Maximum Input Capacity The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

200000 BTU

Efficiency

80 %

Maximum Air Flow

4230 CFM

Electrical Data

Voltage

115 Volts

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Piping Diameter

3/4 Inch

Product Height

32 3/16 Inches

Product Width

41 1/8 Inches

Product Depth

40 Inches

Product Weight

230 Pounds

Shipping Weight

270 Pounds

Warranty Information

Heat Exchanger Warranty

1 Year

Reviews

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Product Q&A

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Search Product Q&A's Answered by Chris, the eComfort Product Expert

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What does SEP & HED stand for?

Randy

from Oregon

May 06, 2016

Answer

The SEP-Series are commercial unit heaters whereas the HED-Series are duct furnaces. The main difference between the two is that the HED-series units do not include a fan to circulate air and will need to be ducted in a system that includes a separate blower. The SEP-series units have a built in fan and do not connect to ducts. Please refer to this brochure for a detailed comparison of the two product lines from ADP.